Week 10 - Galaxies and Universe Expansion
... remnants from the formation of the universe. Stars undergo a life cycle based on the composition of the gases within them. As stars age the amount of hydrogen in the star changes, therefore changing the color and brightness of the star. ...
... remnants from the formation of the universe. Stars undergo a life cycle based on the composition of the gases within them. As stars age the amount of hydrogen in the star changes, therefore changing the color and brightness of the star. ...
PowerPoint File
... What do we see at the galactic center (radio and infrared wavelengths? • Strong radio source (synchrotron radiation) • At infrared wavelengths, can see stars orbiting very vast around Sgr A • http://antwrp.gsfc.nasa.gov/apod/ap001220. html • Ten years of observations speeded up ...
... What do we see at the galactic center (radio and infrared wavelengths? • Strong radio source (synchrotron radiation) • At infrared wavelengths, can see stars orbiting very vast around Sgr A • http://antwrp.gsfc.nasa.gov/apod/ap001220. html • Ten years of observations speeded up ...
The Milky Way powepoint
... The farthest known quasar is about 12 billion light-years away. When we look out into space, out beyond the quasars, we are really looking back into time. Why are all galaxies moving away from us? Why should the galaxies farthest away from us move away the fastest? What’s so special about us? ...
... The farthest known quasar is about 12 billion light-years away. When we look out into space, out beyond the quasars, we are really looking back into time. Why are all galaxies moving away from us? Why should the galaxies farthest away from us move away the fastest? What’s so special about us? ...
how to do it? QSO Absorption Lines and
... … since light interacts with matter (the 4%!) in very specific ways, the pattern of light intensity as a function of wavelength (spectrum) can be decoded and then atomic physics can be applied to deduce the very highly detailed physical state of the matter ...
... … since light interacts with matter (the 4%!) in very specific ways, the pattern of light intensity as a function of wavelength (spectrum) can be decoded and then atomic physics can be applied to deduce the very highly detailed physical state of the matter ...
Astronomy 115 Homework Set #1 – Due: Thursday, Feb
... (c.) The cloud is suddenly compressed without changing the temperature. (d.) The cloud suddenly expands a little without changing the temperture. ...
... (c.) The cloud is suddenly compressed without changing the temperature. (d.) The cloud suddenly expands a little without changing the temperture. ...
![Sun, Stars and Planets [Level 2] 2015](http://s1.studyres.com/store/data/007097773_1-15996a23762c2249db404131f50612f3-300x300.png)
Sun, Stars and Planets [Level 2] 2015
... • Know and use the concepts of magnitude, parallax and proper motion in stellar astronomy • Describe the Galaxy as a collection of stars and their distribution in type and position • Describe the current state of planets and smaller bodies in our own Solar System, including internal structure, atmos ...
... • Know and use the concepts of magnitude, parallax and proper motion in stellar astronomy • Describe the Galaxy as a collection of stars and their distribution in type and position • Describe the current state of planets and smaller bodies in our own Solar System, including internal structure, atmos ...
Study guide for Tools of Astronomy
... Refracting – uses convex lenses which cause the light rays to bend, can cause “chromatic aberrations” which cause the image to be blurry. Galileo first used a refracting telescope to view the night sky in 1609 Reflecting - uses a concave mirror to reflect the received starlight to the eyepiece resul ...
... Refracting – uses convex lenses which cause the light rays to bend, can cause “chromatic aberrations” which cause the image to be blurry. Galileo first used a refracting telescope to view the night sky in 1609 Reflecting - uses a concave mirror to reflect the received starlight to the eyepiece resul ...
ASTR2050 Spring 2005 •
... from stars. We see that it is connected to temperature and we approximate it by “blackbody radiation”. However, there is also “discrete radiation” obvious in stellar spectra. These “spectral lines” give clues to the elements which make up the star. Historically, this is how astronomers came to class ...
... from stars. We see that it is connected to temperature and we approximate it by “blackbody radiation”. However, there is also “discrete radiation” obvious in stellar spectra. These “spectral lines” give clues to the elements which make up the star. Historically, this is how astronomers came to class ...
Astronomical Distances
... Stars that seem to be close may actually be very far away from each other. ...
... Stars that seem to be close may actually be very far away from each other. ...
Notes Chapter 20 - Universe and Stars
... The first models had the Earth in the center of the solar system – GEOCENTRIC Greeks were the first to try to determine Earth’s place in the universe Aristotle used math and models to illustrate the universe ...
... The first models had the Earth in the center of the solar system – GEOCENTRIC Greeks were the first to try to determine Earth’s place in the universe Aristotle used math and models to illustrate the universe ...
Date - Studyladder
... Our solar system is located in a spiral galaxy called The Milky Way. Our galaxy is huge! It is so big that we cannot measure distances in kilometres or miles. The numbers would be too big. Instead, we measure distances by how far light can travel in a year. Light travels at about 300 000 km per seco ...
... Our solar system is located in a spiral galaxy called The Milky Way. Our galaxy is huge! It is so big that we cannot measure distances in kilometres or miles. The numbers would be too big. Instead, we measure distances by how far light can travel in a year. Light travels at about 300 000 km per seco ...
TEK 8 Test Review 1. List the three subatomic particles and give
... 1. List the three subatomic particles and give each of their masses. 2. Describe and draw an illustration (Bohr Model) of the most common element in the Universe. 3. Describe and draw an illustration (Bohr Model) of the second most common element in the ...
... 1. List the three subatomic particles and give each of their masses. 2. Describe and draw an illustration (Bohr Model) of the most common element in the Universe. 3. Describe and draw an illustration (Bohr Model) of the second most common element in the ...
Lecture 29 - Empyrean Quest Publishers
... He used proper motions of Cepheids-->Distance (11 stars). Shapley-Curtis debate 1920--Nebulae are within our island universe (Shapley). Nebulae may be other galaxies (Curtis). Edwin Hubble 1923--distance to Andromeda galaxy found from Cepheid Variable. 2.25 Mill. vs 100,000 LY--Milky way size. Spira ...
... He used proper motions of Cepheids-->Distance (11 stars). Shapley-Curtis debate 1920--Nebulae are within our island universe (Shapley). Nebulae may be other galaxies (Curtis). Edwin Hubble 1923--distance to Andromeda galaxy found from Cepheid Variable. 2.25 Mill. vs 100,000 LY--Milky way size. Spira ...
Chemistry Science Notebook
... The quantum concept concludes that matter can gain or lose only in small, specific amounts called ...
... The quantum concept concludes that matter can gain or lose only in small, specific amounts called ...
History of Spectroscopy
... Around this time, there was conflict about the very nature of light – whether it was a wave form, or made up of particles. Some experiments could be explained if light was considered particulate (Newton’s preference), but other observations needed light to be in wave form for an explanation. A clue ...
... Around this time, there was conflict about the very nature of light – whether it was a wave form, or made up of particles. Some experiments could be explained if light was considered particulate (Newton’s preference), but other observations needed light to be in wave form for an explanation. A clue ...
Practical Laboratory #2: Emission Spectra 2
... The discrete bright (dark) lines in the emission (absorption) spectrum can be explained by treating light as a photon that is emitted (absorbed) by an atom, as shown in Fig. 2.3. (For this lab we are going to concentrate on emission spectra.) In the quantum model of the atom, electrons exist only in ...
... The discrete bright (dark) lines in the emission (absorption) spectrum can be explained by treating light as a photon that is emitted (absorbed) by an atom, as shown in Fig. 2.3. (For this lab we are going to concentrate on emission spectra.) In the quantum model of the atom, electrons exist only in ...
Part I: Moons, Asteroids, and Comets
... 3. Do all planets have moons? _________________________________________________________________________ 4. What is an asteroid? _________________________________________________________________________ 5. Where are most asteroids located? __________________________________________________________ ...
... 3. Do all planets have moons? _________________________________________________________________________ 4. What is an asteroid? _________________________________________________________________________ 5. Where are most asteroids located? __________________________________________________________ ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.